<?php
/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2017/9/15
 * Time: 16:20
 */
$arr = ['aa','bb','cc'];
$arr[] = 'dd';//添加数组
var_dump($arr);

unset($arr[1]); //删除
var_dump($arr);

//$arr[0]

echo $arr[10];